rtl-sdr
turns your Realtek RTL2832 based DVB dongle into a SDR receiver
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Balice ATIS OK:
rtl_fm -f 126.125M -M am -s 10k -E deemp -F 0 -g 40 -l 20 | play -t raw -r 10k -es -b 16 -r 10k -c 1 -V1 - lowpass 5000

lub:
rtl_fm -f 126.125M -M am -s 10k -E deemp -F 0 -g 36 -l 10 | play -t raw -r 10k -es -b 16 -r 10k -c 1 -V1 - lowpass 5000 gain 12

skan test:
rtl_fm -f 121.075M -f 123.250M -f 118.100M -f 125.050M -f 130.875M -M am -s 10k -E deemp -F 0 -g 40 -l 16 -t 2 | play -t raw -r 10k -es -b 16 -r 10k -c 1 -V1 - lowpass 5000

chyba ok:
rtl_fm -f 121.075M -f 123.250M -f 118.100M -f 125.050M -f 130.875M -f 126.975M -M am -s 12k -E dc -g 40 -l 12 -t 2 -p 1 | play -t raw -r 12k -es -b 16 -r 12k -c 1 -V1 -q - lowpass 3000 highpass 200

rtl_fm -f freq_list.txt -M am -s 10k -E deemp -F 0 -g 40 -l 20 | play -t raw -r 10k -es -b 16 -r 10k -c 1 -V1 -q -
rtl_fm -f freq_list.txt -M am -s 12k -E dc -g 40 -l 12 -t 2 -p 1 | play -t raw -r 12k -es -b 16 -r 12k -c 1 -V1 -q - lowpass 3000 highpass 200

rtl_fm -f freq_list.txt -M am -s 12k -E dc -g 40 -l 12 -t 2 -p 1 | ffmpeg -f s16le -channels 1 -sample_rate 12k -i pipe:0 -content_type audio/mpeg icecast://source:Skaner@123@localhost:8000/Stream.mp3


rtl_fm -f 126.125M -M am -s 10k -E deemp -F 0 -g 40 -l 20 | ffmpeg -f s16le -channels 1 -sample_rate 10k -i pipe:0 -content_type audio/mpeg icecast://source:Skaner@123@localhost:8000/Stream.mp3


rtl_fm -f 121.075M -M am -s 10k -E deemp -F 0 -g 40 -l 20 | play -t raw -r 10k -es -b 16 -r 10k -c 1 -V1 -
rtl_fm -f 121.075M -M am -s 10k -E deemp -F 0 -g 40 -l 20 | sox -r 10k -t raw -e s -b 16 -c 1 - test.wav
rtl_fm -f freq_list.txt -M am -s 10k -E deemp -F 0 -g 40 -l 20 | sox -r 10k -t raw -e s -b 16 -c 1 - test.wav



For more information see:
https://osmocom.org/projects/rtl-sdr/wiki